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Benitoite Gem Mine, San Benito Co., California, Page - 1
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S8161 - Benitoite - $1250 SOLD   
Benitoite Gem Mine, New Idria District, San Benito Co., California  
Overall Size: 6.4 x 3.6 cm
Benitoite is one of those minerals everybody wants, probably because of its uniqueness, triangular habit 
and rarity as a gemstone, plus the visual appeal alone is unlike any other species. This isolated gemmy 
well formed rich deep blue crystal measures 2.1 cm. Quite nice considering production has ceased, old 
pieces like the one pictured here will always be desirable in the future, no damage.




S8162 - Neptunite - $300 
Benitoite Gem Mine, New Idria District, San Benito Co., California 
Overall Size: 5.1 x 2.5 cm
Fine miniature! If this is the size range you collect and don't already have the mineral, what sharper  
piece could you ask for? Pristine specimen for the celebrated locality, crystal is 1.8 cm long.




S8163 - Benitoite - $2500 
Benitoite Gem Mine, New Idria District, San Benito Co., California 
Overall Size: 3.5 x 2.9 cm
Wow! Here we have several out of the ordinary features for the species, first its crystal size is a whopping 
2.9 cm from tip to tip, second outside of the crossite included specimens this one is extraordinary for being 
all gemmy blue, and third the cluster form is another rarity from the mine, in fact I have only seen a small 
handful of examples of which many were not as attractive as the piece above. The trigonal shape of the 
large benitoite gives justifiable reason to boast about what is without question a splendid and 
unique piece! Undamaged, size: 3.5 x 2.9 cm.




S8164 - Neptunite - $800  
Benitoite Gem Mine, New Idria District, San Benito Co., California 
Overall Size: 8.5 x 6.7 cm
Fine lustrous smooth dark black neptunites reaching 2 cm tall erupt from a solid bed of snow-white 
natrolite. The really nice thing about this piece is that no bluish gray schist can be seen which is harder 
to get than one would think, in addition to 3 dimensional neptunites standing upright from on all sides. 
Very distinguished small cabinet in perfect condition.




S8165 - Benitoite - $565 SOLD 
Benitoite Gem Mine, New Idria District, San Benito Co., California 
Overall Size: 3.2 x 1.6 cm
Highly desirable and rare triply terminated benitoite on matrix! Perched up on white natrolite, this choice 
crystal is 1.6 cm across. Even when production was ongoing fully formed benitoites were extremely scarce, 
price spikes for this reason. Today it's a joy to see one surface, real value here.




S8166 - Neptunite - $250 
Benitoite Gem Mine, New Idria District, San Benito Co., California 
Overall Size: 9 x 5.5 cm
Nicely placed lustrous dark black prisms up to about 2.8 cm in length are mounted to show the double 
terminations of the largest crystal, matrix measures 9 x 5.5 cm in size. Good example from the 
renowned mine, super contrast.




S8167 - Benitoite - SOLD 
Benitoite Gem Mine, New Idria District, San Benito Co., California 
Overall Size: 3.7 x 2.7 cm
Several marvelous gem quality blue crystals measuring up to 1 cm in length sit scattered upon white 
natrolite as all seven crystals enrich the piece making it more for the money if not additional color. 
This miniature is a good buy, but actually most benitoites are worth purchasing.




S8168 - Neptunite - $125 SOLD 
Benitoite Gem Mine, New Idria District, San Benito Co., California 
Overall Size: 2.5 x 1.6 cm
Lustrous well terminated black crystals measuring up to 2 cm in length sit frozen in white natrolite 
forming a thumbnail of 2.5 x 1.6 cm in size, handsome grouping without damage. Species is unique 
to only a few places and only one specimen mine.




S8169 - Benitoite with Neptunite - $850 
Benitoite Gem Mine, New Idria District, San Benito Co., California  
Overall Size: 6.6 x 3.2 cm
Lustrous doubly terminated black crystal measuring 3.3 cm in length is attached amid whitish natrolite 
matrix of 6.6 x 3.2 cm in overall size. One rich deep blue benitoite of 2.2 cm long sits perched atop an 
"S" shaped matrix. Quite nice considering production has stopped, and older specimens (pictured 
above) are a collector's item that will be sought after in the foreseeable future.




S8170 - Benitoite - $85 SOLD   
Benitoite Gem Mine, New Idria District, San Benito Co., California  
Overall Size: 2.2 x 2 cm
Rare triply terminated floater of crossite included benitoite measuring 2.2 x 2 cm in overall size. 
Would make a super fluorescent or thumbnail from the celebrated California locality. Choice!




S8171 - Benitoite - $50 SOLD   
Benitoite Gem Mine, New Idria District, San Benito Co., California  
Overall Size: 1.3 x 1.2 cm
Rare triply terminated floater of crossite included benitoite measuring 1.3 x 1.2 cm in overall size. 
Would make a super fluorescent or thumbnail from the celebrated California locality. Nice!





        
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